We aim to recruit a cross section of participants covering a broad spectrum of people with OA of the knee. Community participants will be identified from a cohort of patients who have already agreed to be contacted about future research studies. Additional participants will be identified from clinics at Nottingham University Hospitals and Sherwood Forest Hospitals NHS Foundation Trust, GP surgeries in the local area and patients on a knee OA pathway from Nottingham Healthcare partnership. These sources of recruitment will include those attended rheumatology and orthopaedic specialist clinics for knee OA and rheumatology outpatients at the Queens Medical Centre (QMC)